The God of High School - Season 1 Episode 8 close/friend

The team led by Park Ilpyo, one of the participants considered a top Key candidate, faces the team led by Gwim Gi. Gwim Gi calls upon his charyeok, Jack the Ripper, but Ilpyo uses his antiquated taekkyon fighting style rather than relying on charyeok. Meanwhile, Daewi is suspended from the competition after interfering in a match and hitting Taek. Mira scolds him, but Mori seems distracted. Something he sees on Ilpyo's back looks familiar...